Boston時間
18:23:15
日出: 08:10:00 
日落: 16:04:2602:23:15
21:23:15
15:23:15
23:53:15
12:23:15
02:23:15
23:23:15
02:23:15
02:23:15
23:53:15
21:23:15
02:23:15
00:23:15
03:23:15
15:23:15
Boston與主要城市的時差
+7
+7
+7
+6.5
+6
+6
+6
+6
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5
+5
+4.5
+4
+3.5
+3
+3
+3
+3
+3
+3
+3
+2
+2
+2
+2
+1
+1
+1
+1
+1
+1
+1
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8